In accordance with at least one embodiment, a clamp is being formed of a length of metallic or composite wire, primarily for securing a plurality of paper of sheet material. Two independent spline portions are disposed between two respective independent planar end portions with a planar body. The body consists of two legs and a connector. Each end portion makes two points of contact with each respective leg and is capable of having a load of potential energy in a free state. The end portions each overlap the body and are capable of being inwardly flipped to an opposing major planar face of the body. The end portions may each be manually bent away from the opposing face, and be brought back to rest on the original face of the body. This operation increases a holding strength, spring load or potential energy. Double and single clamping effects are provided.